TY - GEN
T1 - Constrained MMSE estimator for distribution mismatch compensation
AU - Lederman, Dror
AU - Tabrikian, Joseph
PY - 2006/12/1
Y1 - 2006/12/1
N2 - This paper addresses the problem of Bayesian estimation in the presence of signal distribution mismatch. A new estimator is derived based on the minimum mean-square error (MMSE) criterion with constraints on the first and second order statistics of the parameters of interest. The resulting constrained MMSE (CMMSE) estimator is found to be robust to signal distribution mismatch, since it incorporates statistical information on the parameters of interest. The performance of the CMMSE estimator under different mismatch conditions is studied via simulations using several examples. It is shown that the CMMSE estimator outperforms the MMSE in the presence of signal distribution mismatch. With no distribution mismatch, the CMMSE performance is slightly lower than the MMSE.
AB - This paper addresses the problem of Bayesian estimation in the presence of signal distribution mismatch. A new estimator is derived based on the minimum mean-square error (MMSE) criterion with constraints on the first and second order statistics of the parameters of interest. The resulting constrained MMSE (CMMSE) estimator is found to be robust to signal distribution mismatch, since it incorporates statistical information on the parameters of interest. The performance of the CMMSE estimator under different mismatch conditions is studied via simulations using several examples. It is shown that the CMMSE estimator outperforms the MMSE in the presence of signal distribution mismatch. With no distribution mismatch, the CMMSE performance is slightly lower than the MMSE.
UR - http://www.scopus.com/inward/record.url?scp=34250667430&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:34250667430
SN - 1424403081
SN - 9781424403080
T3 - 2006 IEEE Sensor Array and Multichannel Signal Processing Workshop Proceedings, SAM 2006
SP - 439
EP - 443
BT - 2006 IEEE Sensor Array and Multichannel Signal Processing Workshop Proceedings, SAM 2006
T2 - 4th IEEE Sensor Array and Multichannel Signal Processing Workshop Proceedings, SAM 2006
Y2 - 12 July 2006 through 14 July 2006
ER -